Home / 121,643.03-167,867.63-67,927.88

Finding the Fourth Proportional to 121,643.03, 167,867.63 and 67,927.88

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Solution

The fourth proportional to 121,643.03, 167,867.63 and 67,927.88 is: 93,740.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,643.03 : 167,867.63 = 67,927.88 : x
  2. Step 2: Convert to fraction form
    121,643.03/167,867.63 = 67,927.88/x
  3. Step 3: Cross multiply
    121,643.03x = 167,867.63 × 67,927.88
  4. Step 4: Simplify right side
    121,643.03x = 11,402,891,047.55
  5. Step 5: Solve for x
    x = 11,402,891,047.55/121,643.03
  6. Step 6: Final answer
    x = 93,740.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.